HEIs are about 5" in diameter as opposed to about 4" stock, so make sure you have an extra 1/2" all around before ordering.
This particular distributor is installed with a reverse cut gear for reverse running engines, usually used on the the starboard engine in twin-screw vessels and many ski boats. A matching regular turning HEI is available on this site too, with or w/o wires. You will need the 170072 power harness unless you already have one. (available during checkout) Enjoy the best!
*NOTE: unless your state requires tax
OUR MARINE DISTRIBUTORS ARE NOT AVAILABLE ELSEWHERE!